We use a storyline approach to model the impacts of extreme flood events in Switzerland in a warmer climate. We find a non-linear relationship between the increase in precipitation and the increase in discharge, which is, among other factors, due to the increasing precipitation intensity. We find a strongly non-linear relationship between the increase in discharge and the increase in damages, which is due to the geometry of the riverbeds, the relative position of the exposure to the rivers, and the discharge exceeding the upper limit of the protective infrastructure.

(1) tbd (2) Idealized Urban Simulations in ICON-CLM (3) Interplay of orography, aerosol concentration and secondary ice formation in contrasting island environments (4) tbd

Oceans cover 70% of the Earth’s surface, which contributed more than half of global aerosol budget. From fresh emissions to cloud formation, aerosol particles and trace gases undergo a succession of physical and chemical processes, include but not limited to photochemical processes in surface seawater, atmospheric aging and cloud processes, which subsequently can alter the properties of a large fraction of clouds. Although there are myriad meticulous campaigns all over the world have focused on this historic yet critically important scientific questions, the inner exact mechanisms of these processes are still poorly understood owing to scarce systematic studies, let alone in a polluted ocean-continent interaction atmosphere. For example, the “Jing-Jin-Ji - Bohai Sea” region. To accomplish these important scientific questions, a serials study of a chain mechanisms is proposed in this project. This project will conduct airborne measurements, island-based measurements, seawater incubation experiments, wind tunnel experiments and cloud chamber simulation in the target area.

(1) tbd (2) Assessing the representation of tropical-extratropical teleconnections in machine learning (ML) and numerical weather prediction (NWP) models for improving the S2S forecast skill (3) Coupling MieAI with RTTOV: Enhancing Radiative Transfer Simulations with AI-Derived Aerosol Properties (4) tbd

 
 

Results from PhD Thesis